Yeah the voodoo3 solid driver and overall performance is good even till today.
Back to the topic, DO NOT GET the MX200, this is a crippled version of the original MX, if I remember correctly the MX200 suppose to have the 64bits SDR, and you should know what this means. I don't know what Nvidia is thinking, as if the original MX memory havn't hurt it enough already.
The Core for the MX400 is clocked higher 200 I think but feature the same memory as the MX. The higher clock performance is virtually nil.
If 2D is a big deal and not look for playing FPS in some high resolution I think the voodoo3 is a better choice for the price and 2D quality to (the voodoo3 does not support 32bits color).
OCn Man:
I doubt the mildly overclocked Voodoo3 will roach any MX based boards in D3d or OpenGL especially with TnL, fps wise.
I don't care about the 3dmarkblab blab blab, and definitely voodoo is better looking. Not only in games, even the Anandtech sign looked much better right now.